2309631066 has 48 divisors (see below), whose sum is σ = 5226197184. Its totient is φ = 735780672.

The previous prime is 2309631061. The next prime is 2309631083. The reversal of 2309631066 is 6601369032.

It is a super-2 number, since 2×2309631066² = 10668791322064592712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2309631066.

It is not an unprimeable number, because it can be changed into a prime (2309631061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 970470 + ... + 972846.

It is an arithmetic number, because the mean of its divisors is an integer number (108879108).

Almost surely, 2^2309631066 is an apocalyptic number.

2309631066 is an abundant number, since it is smaller than the sum of its proper divisors (2916566118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2309631066 is a wasteful number, since it uses less digits than its factorization.

2309631066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 2309631066 is about 48058.6211412687. The cubic root of 2309631066 is about 1321.8460293703.

It can be divided in two parts, 2309 and 631066, that added together give a triangular number (633375 = T₁₁₂₅).

The spelling of 2309631066 in words is "two billion, three hundred nine million, six hundred thirty-one thousand, sixty-six".